Researcher Profile Statistics: Cheng Yan

(Statistics checked on Jun 23, 2022)
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Geo Map
Region #
AS - Asia, other 1
Unknown 1
Total 2
Country #
CN - China 1
Unknown 1
Total 2
City #
Beijing 1
Unknown 1
Total 2


Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Tot
2022 00 1001 0000 00 2
Ever 2